The Mastercool 58560 R134a Eaton (M8 & M10) Valve Core Kit allows the user to remove and install any R-134A valve core while the system is under pressure without losing the systems charge. The kit covers R134a systems for Eaton Style R134a valve cores

Product Features:

Kit covers the Eaton Style R134a valve cores
Heavy duty metal construction
No refrigerant loss
Includes blow molded case
Eliminates the need to remove freon from the system.

WARNING: Cancer & Reproductive harm